Entry 8 is my favorite of your submissions. There's movement in the 'o' that's a nice effect. The font could be stylized a bit like in entry 6. I'm not crazy about the circle above the logo in entry 6 but the rest is pretty good. Everyone has missed the stylistic element of going from blurry to sharp. The Company produces signal processing software for MRI's used in hospitals that essentially 'sharpens' their image.
On entry 18 can you change font color? Perhaps chrome or other that has more dimension... I like the font. The feel is definitely high tech. The 'o' in entry 8 is better than in 18 in my opinion. I think a little bit of dimension could really boost the overall look. Overall, you have some stunning stuff.
On the last comment I meant to type more.....have a look at different effects to integrate with the product offered. The software offered by Spektron "re-integrates" the voxels to enhance imaging.